CN102032110B - Method for reducing vibrations in wind turbines and wind turbine implementing said method - Google Patents
Method for reducing vibrations in wind turbines and wind turbine implementing said method Download PDFInfo
- Publication number
- CN102032110B CN102032110B CN201010506387.XA CN201010506387A CN102032110B CN 102032110 B CN102032110 B CN 102032110B CN 201010506387 A CN201010506387 A CN 201010506387A CN 102032110 B CN102032110 B CN 102032110B
- Authority
- CN
- China
- Prior art keywords
- pitch angle
- propeller pitch
- rotor
- wind
- wind turbine
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000013016 damping Methods 0.000 claims description 16
- 210000000529 third trochanter Anatomy 0.000 claims description 12
- 241000283153 Cetacea Species 0.000 claims description 5
- 230000010355 oscillation Effects 0.000 claims description 4
- 238000009434 installation Methods 0.000 claims 1
- 230000001105 regulatory effect Effects 0.000 description 10
- 238000011217 control strategy Methods 0.000 description 4
- 210000003746 feather Anatomy 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000002708 enhancing effect Effects 0.000 description 3
- 238000012544 monitoring process Methods 0.000 description 3
- 238000003860 storage Methods 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 239000003990 capacitor Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000003534 oscillatory effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 230000002618 waking effect Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/0224—Adjusting blade pitch
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/022—Adjusting aerodynamic properties of the blades
- F03D7/024—Adjusting aerodynamic properties of the blades of individual blades
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0296—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor to prevent, counteract or reduce noise emissions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/04—Automatic control; Regulation
- F03D7/042—Automatic control; Regulation by means of an electrical or electronic controller
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/0264—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor for stopping; controlling in emergency situations
- F03D7/0268—Parking or storm protection
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D7/00—Controlling wind motors
- F03D7/02—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor
- F03D7/028—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power
- F03D7/0284—Controlling wind motors the wind motors having rotation axis substantially parallel to the air flow entering the rotor controlling wind motor output power in relation to the state of the electric grid
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/32—Wind speeds
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/321—Wind directions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/326—Rotor angle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2270/00—Control
- F05B2270/30—Control parameters, e.g. input parameters
- F05B2270/329—Azimuth or yaw angle
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Wind Motors (AREA)
Abstract
A method is presented that reduces vibrations of a wind turbine in a situation where yawing of a wind rotor of said wind turbine is at least temporarily not possible. The method includes adjusting a first pitch angle of a first rotor blade and a second pitch angle of a second rotor blade such that the first and second pitch angles differ by at least 30 degrees.
Description
Technical field
The application relates to the method for reducing the vibration that wind turbine occurs.More specifically, the application relates to the method for reducing the vibration of wind turbine under the infeasible situation of the deflection at wind turbine (being the rotation of Wind turbine nacelle around pylon axis).
Background technique
Wind power plant (also referred to as wind field Huo Feng garden) is included in and in localized area, is mounted to several close toward each other wind turbines.The known a kind of phenomenon occurring in this wind field is so-called eddy current.Specifically, around the pylon of wind turbine, mobile wind produces Feng Kalman (von Karman) vortex street in the downstream of wind turbine tower.Under the condition that is conducive to this phenomenon, for example, when the specific wind speed range relevant with turbo machine and rotor-position when appearance or wind direction, turbo machine can start to vibrate perpendicular to wind direction.Then this vibration can produce stress in the construction element of wind turbine.
Summary of the invention
In view of the foregoing, proposed to reduce under at least temporary transient infeasible situation of a kind of deflection for the wind rotor at wind turbine the method for the vibration of described wind turbine.The method comprises the first propeller pitch angle of adjusting the first rotor blade and the second propeller pitch angle of the second rotor blade, makes the first propeller pitch angle and the second propeller pitch angle differ at least 30 degree.
According to another embodiment, comprise the first rotor blade and the second rotor blade are adjusted to different propeller pitch angles for reducing the method for the vibration of wind turbine during can not deflection, the propeller pitch angle of the first rotor blade and the second rotor blade differs at least 45 degree.
According to other embodiment, provide a kind of wind turbine.This wind turbine comprises: be installed to the first rotor blade and the second rotor blade on rotor hub, each rotor blade can be around becoming the rotation of oar axis, to regulate the corresponding propeller pitch angle of each rotor blade; Be suitable for the variable pitch driver system of the propeller pitch angle that regulates each rotor blade; And wind turbine machine controller, it is suitable for controlling variable pitch driver system, during being at least temporarily infeasible situation with the deflection at wind turbine, regulate the first propeller pitch angle of the first rotor blade and the second propeller pitch angle of the second rotor blade, make the first propeller pitch angle and the second propeller pitch angle differ at least 30 degree.
According to dependent claims, specification and accompanying drawing, other aspect of the present invention, advantage and feature are apparent.
Brief description of the drawings
In the remainder of specification (comprise to accompanying drawing with reference to), more specifically set forth complete and disclosing of can implementing for those of ordinary skills, comprised disclosed optimal mode, in the drawings:
Fig. 1 is the schematic elevational view of wind turbine;
Fig. 2 is the stacked top side view of the wind turbine shown in Fig. 1;
Fig. 3 is stacked top side view according to an embodiment of the invention, that regulated the wind turbine shown in rotor blade pitch angle, Fig. 1;
Fig. 4 is the flow chart of method according to an embodiment of the invention;
Fig. 5 is the flow chart of method according to another embodiment of the invention;
Fig. 6 is the side view of wind turbine according to an embodiment of the invention; And
Fig. 7 is the flow chart of method according to still another embodiment of the invention.
List of parts
6 rotor axis
50,60 wind directions
100 wind turbines
110 pylons
115 pylon axis
120 cabins
130 rotor hubs
140,150,160 rotor blades
142,152,162 leading edges
144,154,164 trailing edges
146 rotor blades become oar axis
170 rotor shafts
180 variable pitch driver systems
185 urgent power supplies
190 wind turbine machine controllers
200 vibration detectors for porpoise
The vibration detector of 210 wind turbine towers
220 anemometer detectors
230 gear-boxes
240 generators
250 deflection drivers
Pa, Pb, Pc propeller pitch angle
RBP rotor blade plane.
Embodiment
To carry out detailed reference to each embodiment now, all explanations in each figure of the one or more examples in embodiment.Each example is that the mode of explaining provides, and does not mean that restriction.For example, illustrate or the feature that is described as an embodiment's a part can be used for using in other embodiment or together with other embodiment, to produce other embodiment.Be intended to the disclosure and comprise such modifications and variations.
Fig. 1 is the schematic elevational view with the wind turbine 100 of three rotor blades 140,150,160.But, embodiment described herein and example are not limited to have the wind turbine of three rotor blades, but also can be about the rotor blade with varying number (especially, also have two rotor blades not only, and also have four or more rotor blade) wind turbine put into practice.Three rotor blades 140,150,160 are arranged in rotor blade plane around rotor hub 130, and rotor hub 130 is attached on the cabin 120 of wind turbine.In this, should be appreciated that wind turbine rotor can have conical in shape, the change oar axis of rotor blade is not exclusively planar aimed at, but contrary formation put down cone.The axis arranged of its Leaf is on the conical surface but not this embodiment who is arranged in plane still can put into practice embodiment described herein.Therefore,, as long as rotor blade plane is carried out to reference, just also comprised thus taper embodiment.In plane and taper embodiment, the angle between two adjacent rotor blades equates typically, and shown in specific embodiment, this angle is 120 degree.Each rotor blade 140,150,160 can for example, rotate around their change oar axis (the change oar axis 146 of rotor blade 140).Line A-A, B-B, C-C represent along the top side view of the rotor blade axis shown in Fig. 2.Cabin 120 is arranged on the top of pylon 110.Typically, cabin 120 can the vertical axis rotation around pylon 110 by means of deflection driver 250.Therefore, wind rotor (be rotor hub 130 and be installed to the rotor blade 140 on rotor hub 130) can be aimed at wind direction, rotor blade plane is oriented and is basically perpendicular to wind direction.Typically, the power that deflection driver 250 is supplied by electrical network provides energy, and wind turbine 100 is connected on electrical network.For example, in the situation that electrical network is lost, deflection driver 250 does not have enough power supplies, and therefore can not make wind rotor aim at respect to wind direction.Due to this misalignment, can there is above eddy current of illustrating.
Fig. 2 is the stacked top side view of the wind turbine shown in Fig. 1.The rotor axis 6 of turbo machine and rotor shaft 170 almost coaxials and be basically perpendicular to rotor blade plane RBP and extend, rotor blade is arranged in rotor blade plane RBP.Rotor hub 130 is rotatably attached on cabin 120.On the top of rotor hub 130, all three rotor blades, 140,150,160 side cross-sectional views along line A-A, B-B, C-C are shown in stacked mode.Will appreciate that residing moment when each sectional view represents that corresponding rotor blade has reached its tip position.
In addition, propeller pitch angle Pa, Pb, the Pc of three rotor blades 140,150 and 160 in Fig. 2, have been shown respectively.During the normal running of wind turbine, three propeller pitch angle Pa, Pb and Pc will be identical, or differ each other the only several years.Only for object clearly and propeller pitch angle Pa, Pb, Pc are shown as to difference.Each rotor blade 140,150,160 has leading edge 142,152,162 and trailing edge 144,154,164.For the purpose of this disclosure, propeller pitch angle is defined as follows.If the leading edge of rotor blade and trailing edge be arranged in rotor blade plane RBP (in Fig. 2 leading edge towards a left side, and trailing edge is towards the right side), this rotor blade position is defined as and has 0 degree propeller pitch angle.The blade (leading edge is towards the protuberance rotation of rotor hub 130 herein) that turns clockwise from this position, positive blade angle increases by+90 degree, thereby becomes the position Pa shown for the sectional view A-A of blade 140.As shown in Figure 2, leading edge 142 and trailing edge 144 are aimed at rotor axis 6 now.Propeller pitch angle Pb shown in Fig. 2 and Pc are also positive, be less than+90 degree of Pb, be greater than+90 degree of Pc.If the leading edge of the rotor blade in Fig. 2 along rotor blade plane RBP towards the right side and the rear surface of rotor blade left, rotor blade have+180 degree propeller pitch angle (not shown)s.The propeller pitch angle of be greater than+180 degree will cause leading edge to face cabin 120.If rotor blade is rotated counterclockwise, leading edge faces cabin 120, and propeller pitch angle can present negative value.For example, protuberance and leading edge 142 that-90 degree propeller pitch angles face rotor hub 130 corresponding to trailing edge 144 face 120Shi position, cabin.Therefore, any propeller pitch angle all can be by the occasion of describing with negative value, and it is identical position that for example+270 degree and-90 are spent.This is shown as an example about rotor blade 140 in Fig. 3.Can obtain the position about the rotor blade of other propeller pitch angle according to the definition providing above.
In Fig. 2, show for rotor blade 140 in addition ,+90 degree propeller pitch angle Pa are also referred to as the feather position of rotor blade.When in feather position, rotor blade can not drawn large energy from wind, and even can cause the aerodynamic braking of wind rotor.Therefore,, in the time that turbo machine dallies and do not produce power, conventionally make rotor blade 140,150,160 enter in feather position.But the aforementioned actual conditions that are only only in the time that wind direction is basically perpendicular to rotor blade plane RBP, as indicated by the interrupted arrow 50 in Fig. 2.For example, in the deflection of wind turbine at least temporarily under the situation of infeasible (reason of losing due to electrical network), the wind direction misalignment that rotor blade plane RBP can be indicated with respect to the complete arrow 60 by Fig. 2.Under the example scenario of describing in Fig. 2, rotor blade plane RBP spends with respect to wind direction 60 misalignments 90.In other words, rotor blade plane RBP is not perpendicular to wind direction, but is parallel to wind direction 60.In this case, if all three rotor blades all in feather position, have just strengthened eddy current.Specifically, caused by eddy current along front and back vibration or the vibration of rotor axis 6.And, can be caused by eddy current along the vibration of other direction in space, and can be depending on the misalignment between rotor blade plane RBP and wind direction and change.If one or more in rotor blade have-90 degree propeller pitch angles, also can there is identical phenomenon.Therefore, there are have+90 degree propeller pitch angles of-90 degree propeller pitch angles or some blades at blade and during the situation that dallies some have-90 degree propeller pitch angle in the situation that, aforementioned vibration and vibration also can occur at wind rotor.
In one embodiment of the invention, the first propeller pitch angle Pa of the first rotor blade 140 and the second propeller pitch angle Pb of the second rotor blade 150 are regulated so that the first propeller pitch angle and the second propeller pitch angle Pa, Pb differ at least 30 degree.For example, the first propeller pitch angle Pa can be arranged to-90 degree, and the second propeller pitch angle Pb can be arranged to+and 30 degree.Due to the larger difference between the first propeller pitch angle and the second propeller pitch angle, reduce significantly the impact that eddy current causes.Specifically, damping along the vibration of the fore-and-aft direction of rotor hub 130 (in the direction or rotor axis 6).Therefore, the oscillating load on rotor shaft 170 and other power train member (example gear-box 230 and generator 240 as shown in Figure 6) is reduced.Therefore, this method is particularly useful at least temporary transient infeasible situation of deflection (for example, during electrical network is lost) of wind rotor.For example, after having regulated as described above the first propeller pitch angle and the second propeller pitch angle, in the endurance that wind rotor can be lost at electrical network, dally, and protection turbo machine is not subject to the adverse effect of eddy current.
As set forth above, vibration damping effect is to be caused by the larger difference in propeller pitch angle.Therefore, the first propeller pitch angle and the second propeller pitch angle can differ at least 45 degree.Specifically, in the time that the rotor blade sectional area towards specific direction expands, be just improved along the damping function of this specific direction.In other words,, when the broadside face of blade is during to specific direction, be just improved along the damping of the vibration of this direction, because the vibration along this direction by damping of the resistance of air of blade.Under the situation that there is no deflection capacity, blade is arranged to different propeller pitch angles, makes under any circumstance all to occur damping (and particularly for the wind direction changing).
In addition, third trochanter blade 160 can be a part for above-mentioned vibration damping concept.In one embodiment, the 3rd propeller pitch angle Pc of third trochanter blade 160 is regulated so that Pc is different significantly with the second propeller pitch angle Pb from the first propeller pitch angle Pa.For example, the 3rd propeller pitch angle Pc can differ respectively at least 30 degree with the first propeller pitch angle Pa and the second propeller pitch angle Pb.An exemplary embodiment of this layout has shown in Fig. 3, and Fig. 3 is the stacked top side view of the wind turbine shown in Fig. 1.In the embodiment shown in fig. 3, the first rotor blade 140 has the propeller pitch angle Pa of-90 degree, the propeller pitch angle of have+30 degree of the second rotor blade 150, and third trochanter blade 160 has+the 150 propeller pitch angle Pc that spend.Therefore, in the time measuring along clockwise direction, angular difference between the first propeller pitch angle Pa and the second propeller pitch angle Pb is 120 degree, in the time measuring along clockwise direction, angular difference between the second propeller pitch angle Pb and the 3rd propeller pitch angle Pc is 120 degree, and in the time measuring along clockwise direction, the angular difference between the first propeller pitch angle Pa and the 3rd propeller pitch angle Pc is 120 degree.Certainly, can according to circumstances select other value of propeller pitch angle and the angular difference between them, each position be had and equate or unequal angular difference.In one embodiment, for example, the first propeller pitch angle Pa is-90 degree, and the second propeller pitch angle Pb is+45 degree, and the 3rd propeller pitch angle Pc is zero degree.In another embodiment, the first propeller pitch angle Pa is+90 degree, and the second propeller pitch angle Pb is-30 degree, and the 3rd propeller pitch angle Pc is-150 degree.
As mentioned above, some embodiments adopt compared with 30 degree only further larger angular difference, and wherein, the 3rd propeller pitch angle differs respectively at least 45 degree with the first propeller pitch angle and the second propeller pitch angle along clockwise direction.Can between the first propeller pitch angle Pa, the second propeller pitch angle Pb and the 3rd propeller pitch angle Pc, use respectively even larger difference, for example 60 degree, 80 degree, 90 degree or 120 degree.For example, between the first propeller pitch angle Pa and the second propeller pitch angle Pb, difference along clockwise direction can be the scope of from 30 to 150 degree, particularly 45 to 120 degree (scope), more particularly 60 to 90 degree (scope).In another embodiment, between the second propeller pitch angle Pb and the 3rd propeller pitch angle Pc difference along clockwise direction the scope of from 30 to 120 degree, particularly 45 to 105 degree (scope), more particularly 60 to 90 degree (scope).And, between the first propeller pitch angle Pa and the 3rd propeller pitch angle Pc, difference along clockwise direction can be in the scope of 60 to 270 degree, particularly 90 to 240 degree (scope), in certain embodiments 120 to 180 degree (scope) more particularly.In certain embodiments, at least one in propeller pitch angle at 0 degree until but do not comprise in the scope of 180 degree, and at least one in propeller pitch angle at 180 degree until but do not comprise in the scope of 360 degree.In other embodiments, in propeller pitch angle is arranged to zero degree.
In the flow chart of Fig. 4, show a specific embodiment of method 400 as described above.Whether in the drawings, monitor constantly wind turbine, be temporarily infeasible with the deflection of determining wind turbine at decision block 405 places.In the case of detecting, electrical network is lost or impact makes any other situation of ability of wind turbine deflection, the method continues, with the propeller pitch angle of regulating rotary blades, and they are arranged to-35 degree, zero degree and+35 degree, to reduce vibration at square frame 410 places, the porpoise particularly causing due to eddy current.But specific propeller pitch angle is only example, and can use different propeller pitch angle values.In circulation 415, whether monitoring electrical network is lost state and is still existed.As long as there is the situation that cannot be provided with to deflection driver power, the setting that just keeps propeller pitch angle.
Should be appreciated that can be in the case of not carrying out the adjusting of propeller pitch angle and the monitoring of electrical network the power supply from electrical network.Typically, wind turbine comprises the urgent power supply that makes it possible to make vane propeller-changing under the situation of the unavailable rate of doing work supply of electrical network, such as battery, storage battery, capacitor etc.Therefore, the described adjusting of propeller pitch angle can be subject to the impact of urgent power supply.But urgent power supply has limited storage capacity, and can be owing to repeatedly regulating propeller pitch angle to exhaust.Therefore, will typically propeller pitch angle Primary regulation be arrived to the value of optimizing for the wind condition changing.In the situation that this propeller pitch angle arranges, even for the wind condition changing, turbo machine is also in a safe condition.For example, this safety setting can be the one setting shown in Fig. 3.Finally, once wind turbine can deflection, wind turbine is with regard to enabling 420.Typically, make wind turbine get back to normal running and comprise concrete waking up (wake-up) program.
Infeasible but the electrical network of deflection therein can for example, with in other embodiment of (fault of deflection system), during cannot carrying out the period of deflection, and still adjustable propeller pitch angle, and do not consume urgent power supply.In this case, the variation of wind direction can provide preferred another propeller pitch angle setting aspect vibration damping.Because electrical network can be used as the power supply for variable pitch driver, so may be adjusted to, propeller pitch angle optimizes vibration damping under physical condition.In the case of impaired deflection system, only repairing or change deflection system, wind turbine just can enabling afterwards.In this case, normal running will can not recover, but the method will comprise repairing or the replacing of defective parts.Afterwards, wind turbine will restart according to normal procedure.
As mentioned above, will select pitch angular difference, the vibration causing to reduce eddy current and/or similar phenomenon.Therefore, along with the past of time can monitor the result that different propeller pitch angles combines, and in having adopted propeller pitch angle combination, this result can be interrelated with corresponding wind condition (particularly wind direction and wind speed).In addition, the vibration of vibration detector in can the different parts of sensing turbo machine, for example tower oscillation, rotor shaft vibration etc.And, vibration detector can sensing along the vibration of different direction in spaces, for example, along two or three orthogonal directions.Measures first mentioned allows collect data and set up empirical relation, and they can be used for controlling turbo machine under the situation that cannot carry out deflection.
According to a further aspect in the invention, wind rotor can be parked near the position pylon 110 that neither one in rotor blade is wherein positioned at wind turbine 100.The position that this comprises its Leaf before pylon or after pylon or approaches pylon.Specifically, at blade with respect to wind direction before pylon or below in the situation that, also can eddy generation.The in the situation that of the present embodiment, term " stops " or " stopping " referring to wind rotor is locked onto on this position that does not allow wind rotor idle running.For example, can wind rotor be locked onto on the position of expectation by brake application.Make wind rotor be parked in described locational reason and be, in the time that rotor is parked (a blade down) in the situation that near pylon at a blade, can strengthen the vibration that eddy current causes.This enhancing of vibration may be because the aerodynamic effect of the eddy current on lower damping and/or this blade of near the rotor blade pylon causes.In this respect, if the change oar axis of rotor blade down and with respect to pylon axis depart from-15 degree to+15 degree angular regions in, rotor blade will typically be considered to be parked near pylon.In this respect, can be regarded as is up and down with respect to horizontal, or in other words, upward direction is along pylon axis from pylon base portion to cabin, and downward direction is from cabin to pylon base portion.For fear of the above-mentioned enhancing of vibration, wind rotor is parked in and makes in blade neither one be positioned at before pylon, after pylon or be positioned proximate on the position of pylon.Specifically, after detecting the infeasible situation of deflection of wind rotor wherein, wind rotor just rotates near the position pylon that neither one in rotor blade is wherein positioned at wind turbine around rotor axis.Therefore, can avoid strengthening.In one embodiment, the wind rotor with three rotor blades is parked on such position: wherein, a rotor blade upward, and the change oar axis of rotor blade and the longitudinal axis of wind turbine tower be formed on+and 15 degree are to the angle in the scopes of-15 degree, particularly+10 degree to-10 degree scopes in angle, more particularly+5 degree to-5 degree scopes in angle.For example, shown this situation in Fig. 1, wherein, rotor blade 140 upward, and is aimed at pylon axis 115, and to become the angle between oar axis 146 and pylon axis be about zero degree to rotor blade.Above content is further said, in the time that wind rotor locks, the propeller pitch angle of the rotor blade of close pylon can regulate by this way:, it is less inclined to and obtains eddy current excitation.For example, the propeller pitch angle of the rotor blade of close pylon may be adjusted to and makes the wide side of rotor blade be basically perpendicular to wind direction actual and/or expection.
In addition, in the situation that no longer propeller pitch angle adjusting can being carried out, wind rotor is located so that in rotor blade, neither one may remain feasible near being positioned at pylon.Therefore, can in the situation that not relying on propeller pitch angle setting, apply the described location of wind rotor, and some of the vibration that still provides eddy current to cause are provided in the described location of wind rotor.
Fig. 5 is according to the flow chart of another embodiment's of said method method 500.Be similar to Fig. 4, monitor constantly the deflection capacity of wind turbine at decision block 505 places.Lose or affect any other situation of deflection capacity in the case of detecting electrical network, in square frame 510, the method continues, wind rotor is parked on such position: wherein, one in rotor blade with respect to rotor shaft upward, to avoid the enhancing of caused vibration.Subsequently, in square frame 515, the first propeller pitch angle is arranged to-90 degree, and the second propeller pitch angle is arranged to 30 degree, and the 3rd propeller pitch angle is arranged to 150 degree, further to reduce vibration.As mentioned above, the adjusting of propeller pitch angle can be subject to the impact of urgent power supply.Typically, will only regulate propeller pitch angle once, to save the energy of urgent power supply.In circulation 520, whether monitoring condition still exists.As long as there is the situation that cannot be provided with to deflection driver power, just keep the stand of wind rotor and the setting of propeller pitch angle.When turbo machine detect electrical network again can with or wind turbine otherwise again when deflection, the normal running of turbo machine will recover at square frame 525 places.Typically, make wind turbine get back to normal running and comprise executable concrete wake up procedure.
In some embodiments of the method, the propeller pitch angle of the first rotor blade, the second rotor blade and third trochanter blade differs respectively at least 45 degree.In other embodiments, for example not only reduce, along the vibration of a direction in space (fore-and-aft direction), but also reduced along the vibration of at least one other direction of the axial direction perpendicular to rotor shaft.In other other embodiment, the propeller pitch angle of rotor blade is arranged so that along the value of three orthogonal direction in space generation vibration dampings.But aforementioned oscillatory type is only limiting examples, and embodiments of the invention substantially with cannot carry out the event of deflection during vibration damping relevant.Therefore, embodiments of the invention can be used to reduce the vibration of wind turbine components substantially.This wind turbine components includes but not limited to pylon 110, cabin 120, rotor hub 130, rotor blade 140,150,160, rotor shaft 170, gear-box 230 or generator 240.Propeller pitch angle by regulating rotary blades is realized vibration damping, as described in conjunction with various embodiments of the present invention herein.Typically, will obtain concrete setting in the mode of experience, because they depend on the actual conditions of the position of the turbo machine in wind field place and wind field.As the basis of experience control strategy, will monitor at least one variable.Typically, this variable is by the porpoise, wind direction, wind speed, angle of yaw skew, rotor-position or their any combination that are tower oscillation, wind rotor.Certainly, also can monitor other environment or turbo machine parameter, and these parameters can be interrelated with the vibrational state of turbo machine.Typically, the propeller pitch angle of the first rotor blade, the second rotor blade and third trochanter blade arranges the variable (one or more) based on definite, to reduce vibration.
Further it should be noted that in the above-described embodiments any one all allows wind rotor around rotor axis rotation (only except the embodiment of wherein wind rotor locking).Specifically, the setting of propeller pitch angle is not limited to the wherein repressed this combination of rotation of wind rotor.On the contrary, the slow circumvolve of wind rotor may be even desirable, to avoid the infringement that causes impression (brinelling) or other vibration to cause to rotating machinery.The potential basic conception that will be appreciated that the application can be applicable to the wind rotor of locking and the wind rotor of idle running.
Fig. 6 is the side view of wind turbine 100 according to an embodiment of the invention.Wind turbine 100 has the first rotor blade 140, the second rotor blade 150 and the third trochanter blade 160 that are installed on rotor hub 130.As shown in Figure 6, each rotor blade can be for example, around becoming oar axis (axis 146 of rotor blade 140) rotation, to regulate its corresponding propeller pitch angle.Wind turbine further comprises variable pitch driver system 180, and it is suitable for regulating the propeller pitch angle of each rotor blade 140,150,160.For example, variable pitch driver system 180 can comprise the electric servomotor that is positioned at each rotor blade place, makes to allow that each rotor blade is carried out to independently propeller pitch angle and regulates.In addition, urgent power supply 185 (for example battery pack, storage battery or capacitors) are positioned at wheel hub 130.Urgent power supply 185 is connected with variable pitch driver system 180, and be suitable in the case of can not obtain supply from the power of electrical network to variable pitch driver system supply power.In addition, wind turbine 100 comprises wind turbine machine controller 190.Typically, wind turbine machine controller 190 is the computer systems adjusted especially that are connected on one or more sensors.Therefore, wind turbine machine controller 190 is monitored near the environmental condition of wind turbine and the situation of wind turbine sustainably.Based on these data, then wind turbine machine controller 190 determines whether regulate any turbo machine parameter, for example, and propeller pitch angle, angle of yaw, generator torque.If regulate turbo machine parameter, wind turbine machine controller just sends to actuator by control signal, and then actuator correspondingly regulates turbo machine parameter.In the embodiment shown in fig. 6, wind turbine machine controller 190 is connected on the first vibration detector 200, and the first vibration detector 200 is suitable for surveying the vibration along the fore-and-aft direction in cabin 120.In addition or alternatively, the first vibration detector 200 can be suitable for surveying the lateral vibration in cabin 120.For example, vibration detector 200 can directly be installed on the wall in main frame or cabin 120.In other embodiments, vibration detector 200 can be installed on rotor hub 130.And vibration detector 200 can be suitable for surveying the vibration along other direction in space, for example, along the vibration of pylon axial direction.In other embodiments, can be by survey the bending moment acting in rotor shaft 170, blade 140,150,160, wheel hub 130, main frame or tower wall with resistance strain gauge.In addition, wind turbine machine controller 190 is connected on the other vibration transducer 210 that is arranged in pylon 110.Vibration transducer 210 is suitable for surveying along the tower oscillation of orthogonal direction in space, typically along the vibration of the direction perpendicular to pylon axis, and by the vibratory report detecting to controller 190.Substantially, wind turbine machine controller 190 is connected at least one vibration detector of the vibration that is suitable at least one wind turbine components of sensing.Wind turbine components includes but not limited to pylon 110, cabin 120, rotor hub 130, rotor blade 140,150,160, rotor shaft 170, gear-box 230 or generator 240.Therefore, controller 190 has the general view of the vibrational state to wind turbine, and can determine the nuisance vibration that can damage turbine components (for example rotor shaft 170, gear-box 230 and generator 240), for example porpoise.In addition, controller 190 is connected on wind sensor 220, wind sensor 220 be suitable for probe wind to and wind speed.For example, wind sensor 220 can comprise windage scale and wind vane.Therefore, the vibrational state of turbo machine can collect with controller 190 (collected by controller 190 itself or data report to control centre in) wind data interrelated.In addition, the position of wind rotor (being rotor blade 140,150,160 orientations with respect to rotor axis 6) can be used as the input parameter of the control strategy of wind turbine machine controller 190.Based on these data, can in wind turbine machine controller 190, determine and realize experience control strategy, for the specifically concrete propeller pitch angle setting of wind condition.Therefore, controller 190 rule of thumb control strategy depend on that the wind condition being detected by wind sensor 220 carrys out the propeller pitch angle of regulating rotary blades.In addition, can in controller 190, realize self-learning algorithm, for example, for current wind condition, optimize during making propeller pitch angle be arranged on the situation that at least temporary transient infeasible but propeller pitch angle of deflection regulates still feasible (when deflection system is out of order but electrical network when available).
Fig. 7 is the flow chart of method 700 (wind turbine that it can be is as shown in Figure 6 carried out).In the drawings, monitor constantly the deflection of wind turbine at decision block 705 places.Afterwards, determine at decision block 710 places whether electrical network still can be used as the power supply of variable pitch driver.In the situation that electrical network still can be used, the method continues at square frame 715 places, to determine wind speed, wind direction and angle of yaw skew, i.e. misalignment between wind direction and rotor blade plane.At square frame 720 places, based on the value of determined variable, propeller pitch angle is arranged to reduce the value along the vibration of at least two orthogonal direction in spaces.Therefore, improved vibration damping for actual environmental condition.In certain embodiments, propeller pitch angle is adjusted to not only reduce along the vibration of two orthogonal direction in spaces, but also reduces along the vibration of three orthogonal direction in spaces.Therefore, vibration damping is enhanced.As shown in Figure 7, if determine that at decision block 710 places electrical network is unavailable, just apply alternative program.In this case, at square frame 725 places, the method continues the propeller pitch angle of blade to be adjusted to safe setting.No matter safety arranges the combination that is suitable for the propeller pitch angle that wind direction how all can damped vibration by being.This set can be example setting as shown in Figure 3.Because electrical network is disabled in this operation period, so regulating, typically realized by urgent power supply propeller pitch angle.For fear of exhausting urgent power supply, only regulate propeller pitch angle once, be namely adjusted to safe setting, and then during electrical network is lost, do not changed this propeller pitch angle.Subsequently, in either case, in decision block, 730 places monitor the deflection capacity of wind turbine, to determine whether still to exist the situation that turbo machine can not deflection.If deflection is still infeasible, the method just turns back to decision block 710, and as described above from continuing here.Again can deflection if detect turbo machine in decision block 730, wind turbine is just according to square frame 735 enablings, and this typically comprises carries out concrete wake up procedure as above.
By embodiments more described herein being illustrated with reference to cloverleaf wind turbine.But, also can in the wind turbine of blade with varying number, put into practice and realize embodiments of the invention, particularly practice and realizing in thering is the wind turbine of two blades only and thering is the wind turbine of four or more blades.
This written description has been used example, comprises optimal mode, and makes any person skilled in the art can manufacture and use described theme.Although disclose various specific embodiments in aforementioned content, those skilled in the art will approve, the equal effectively amendment of spirit and scope permission of claims.In particular, the feature of the mutual non-exclusionism of above-described embodiment can be bonded to each other.Scope that can granted patent is defined by the claims, and can comprise this amendment and other example that those skilled in the art expect.If this other example has the structural element of the literal language that does not differ from claims, if or this other example comprises and the literal language of claims equivalent structure element without substantial differences, within this other example is intended to the scope in claims.
Claims (19)
1. for reducing the method for vibration for wind turbine, described wind turbine comprises the wind rotor that at least comprises the first rotor blade and the second rotor blade, and described method comprises:
Regulate the first propeller pitch angle of described the first rotor blade and the second propeller pitch angle of described the second rotor blade, make described the first propeller pitch angle and the second propeller pitch angle differ at least 30 degree, wherein, when described adjusting occurs in the deflection infeasible state of described wind turbine in described wind rotor, and described wind rotor runs through described adjusting and remains in fixing inflection point.
2. method according to claim 1, is characterized in that, the infeasible wind turbine state of deflection of described wind rotor is lost and realized by electrical network.
3. method according to claim 1, is characterized in that, the infeasible wind turbine state of deflection of described wind rotor is realized in the time of the deflection system operation troubles of described wind turbine.
4. method according to claim 1, is characterized in that, described the first propeller pitch angle and the second propeller pitch angle differ at least 45 degree.
5. method according to claim 1, is characterized in that, described wind rotor further comprises third trochanter blade, and described method further comprises:
Regulate the 3rd propeller pitch angle of described third trochanter blade, make described the 3rd propeller pitch angle and described the first propeller pitch angle and the second propeller pitch angle differ respectively at least 30 degree; Wherein, when described adjusting occurs in the deflection infeasible state of described wind turbine in described wind rotor, and described wind rotor runs through described adjusting and remains in fixing inflection point.
6. method according to claim 5, is characterized in that, described the 3rd propeller pitch angle and described the first propeller pitch angle and the second propeller pitch angle differ respectively at least 45 degree.
7. method according to claim 5, is characterized in that, at least one in described propeller pitch angle from 0 degree until but do not comprise the scope of 180 degree, and at least one in described propeller pitch angle is from 180 degree until but do not comprise the scope of 360 degree.
8. method according to claim 5, is characterized in that, at least one in described propeller pitch angle is 0 degree.
9. method according to claim 5, it is characterized in that, difference along clockwise direction between described the first propeller pitch angle and the second propeller pitch angle is the scope of from 30 to 150 degree, difference along clockwise direction between described the second propeller pitch angle and the 3rd propeller pitch angle is the scope of from 30 to 120 degree, and difference along clockwise direction between described the first propeller pitch angle and the 3rd propeller pitch angle is the scope of from 60 to 270 degree.
10. method according to claim 1, it is characterized in that, after the infeasible state of the deflection that detects described wind rotor, described wind rotor is parked in as on upper/lower positions: in this position, do not have rotor blade to be positioned near the pylon of described wind turbine.
11. methods according to claim 10, is characterized in that, down, and the change oar axis of described rotor blade and the longitudinal axis of described wind turbine tower form the angle in the scope in being greater than 15 degree to a rotor blade.
12. methods according to claim 5, is characterized in that, the propeller pitch angle of described the first rotor blade, the second rotor blade and third trochanter blade differs respectively at least 45 degree.
13. methods according to claim 1, is characterized in that, described method further comprises:
The axis that described wind rotor is parked in to each and wind turbine tower in described rotor blade forms on the position of angles of at least 15 degree.
14. methods according to claim 13, is characterized in that, in the time of the deflection infeasible state of described wind turbine in described wind rotor, described wind rotor is locked in described position, and described wind rotor remains in fixing inflection point.
15. methods according to claim 1, it is characterized in that, described method further comprises at least one variable of determining the group that is selected from following variable composition: porpoise, wind direction, wind speed, angle of yaw skew, rotor-position and their any combination of tower oscillation, described wind rotor; And
Regulate the propeller pitch angle of described the first rotor blade and the second rotor blade based at least one definite variable.
16. methods according to claim 1, is characterized in that, the propeller pitch angle of described rotor blade is arranged so that the value that vibration damping occurs at least two mutually perpendicular direction in spaces.
17. 1 kinds of wind turbines, comprising:
At least comprise the wind rotor of the first rotor blade and the second rotor blade, each in described rotor blade can be around becoming the rotation of oar axis, to regulate its corresponding propeller pitch angle;
Variable pitch driver system, is configured to regulate the described propeller pitch angle of each rotor blade; And
Wind turbine machine controller, be configured to carry out propeller pitch angle adjusting to control described variable pitch driver system, while being included in the deflection infeasible state of described wind turbine in described wind rotor, regulate the first propeller pitch angle of described the first rotor blade and the second propeller pitch angle of described the second rotor blade, make described the first propeller pitch angle and the second propeller pitch angle differ at least 30 degree, and described wind rotor run through described propeller pitch angle and regulates and remain in fixing inflection point.
18. wind turbines according to claim 17, it is characterized in that, described wind rotor further comprises third trochanter blade, and this third trochanter blades installation is to rotor hub and can rotate to regulate its propeller pitch angle around becoming oar axis by described variable pitch driver system, and
Wherein, described wind turbine machine controller is further configured to regulate the 3rd propeller pitch angle of described third trochanter blade when the infeasible state of deflection in described wind rotor at described wind turbine, make described the first propeller pitch angle, the second propeller pitch angle and the 3rd propeller pitch angle differ respectively at least 30 degree, and described wind rotor run through described propeller pitch angle and regulates and remain in fixing inflection point.
19. wind turbines according to claim 17, it is characterized in that, described wind turbine further comprises and being configured to survey the vibration detector of the vibration of at least one wind turbine components, wherein, described wind turbine machine controller is further configured to so that the vibration based on detecting regulates described the first propeller pitch angle and the second propeller pitch angle, thereby the vibration of described wind turbine components is reduced.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US12/570396 | 2009-09-30 | ||
| US12/570,396 US8360723B2 (en) | 2009-09-30 | 2009-09-30 | Method for reducing vibrations in wind turbines and wind turbine implementing said method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102032110A CN102032110A (en) | 2011-04-27 |
| CN102032110B true CN102032110B (en) | 2014-08-20 |
Family
ID=42984058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201010506387.XA Active CN102032110B (en) | 2009-09-30 | 2010-09-30 | Method for reducing vibrations in wind turbines and wind turbine implementing said method |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US8360723B2 (en) |
| EP (1) | EP2306005B1 (en) |
| CN (1) | CN102032110B (en) |
| DK (1) | DK2306005T3 (en) |
| ES (1) | ES2599353T3 (en) |
Families Citing this family (38)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8441138B2 (en) * | 2009-05-07 | 2013-05-14 | Vestas Wind Systems A/S | Wind turbine |
| WO2012118549A1 (en) * | 2010-12-09 | 2012-09-07 | Northern Power Systems, Inc. | Systems for load reduction in a tower of an idled wind-power unit and methods thereof |
| US8178989B2 (en) * | 2010-12-15 | 2012-05-15 | General Electric Company | System and methods for adjusting a yaw angle of a wind turbine |
| GB2487715A (en) * | 2011-01-18 | 2012-08-08 | Vestas Wind Sys As | Method and apparatus for protecting wind turbines from extreme wind direction changes |
| US20140003939A1 (en) * | 2011-03-15 | 2014-01-02 | Purdue Research Foundation | Load shape control of wind turbines |
| US8317471B2 (en) * | 2011-11-29 | 2012-11-27 | General Electric Company | Method for preventing rotor overspeed of a wind turbine |
| US8890349B1 (en) | 2012-01-19 | 2014-11-18 | Northern Power Systems, Inc. | Load reduction system and method for a wind power unit |
| IN2014DN10679A (en) * | 2012-06-08 | 2015-08-28 | Vestas Wind Sys As | |
| DK201270417A (en) * | 2012-07-09 | 2014-01-10 | Envision Energy Denmark Aps | Method and System to Actively Pitch to Reduce Extreme Loads on Wind Turbine |
| JP2014070516A (en) * | 2012-09-28 | 2014-04-21 | Hitachi Ltd | Wind power generation system |
| DE102012218484A1 (en) * | 2012-10-10 | 2014-04-10 | Wobben Properties Gmbh | Method for operating a wind energy plant |
| WO2015065425A1 (en) | 2013-10-31 | 2015-05-07 | General Electric Company | System and method for controlling wind power generation systems |
| EP3080445A1 (en) * | 2013-12-09 | 2016-10-19 | Vestas Wind Systems A/S | Counteracting tower oscillations of an idling wind turbine |
| CA2931690C (en) * | 2013-12-09 | 2020-08-04 | General Electric Company | System and method for reducing oscillation loads of wind turbine |
| US9878775B2 (en) | 2013-12-30 | 2018-01-30 | X Development Llc | Dual-pitch support for a propeller |
| ES2656684T3 (en) * | 2014-08-13 | 2018-02-28 | Vestas Wind Systems A/S | Improvements in relation to the determination of imbalances of the rotor in a wind turbine |
| ES2807500T3 (en) * | 2015-11-18 | 2021-02-23 | Vestas Wind Sys As | Method and control system for wind turbine having multiple rotors |
| US10337495B2 (en) | 2016-05-19 | 2019-07-02 | General Electric Company | System and method for reducing vortex-induced tower vibrations of a wind turbine |
| US11041480B2 (en) | 2016-05-26 | 2021-06-22 | Vestas Wind Systems A/S | Wind turbine system with damping during service |
| ES2934717T3 (en) | 2016-06-13 | 2023-02-24 | Vestas Wind Sys As | Vibration damping of wind turbine blades in the direction of the edge |
| US11396862B2 (en) | 2017-02-10 | 2022-07-26 | Vestas Wind Systems A/S | Position based vibration reduction of nacelle movement |
| DE102017208266A1 (en) * | 2017-05-17 | 2018-11-22 | Zf Friedrichshafen Ag | Determination of a bending moment |
| DE102017121750A1 (en) | 2017-09-20 | 2019-03-21 | Wobben Properties Gmbh | Method for a wind energy plant in emergency operation as well as control and wind energy plant |
| DE102018005134A1 (en) * | 2018-06-28 | 2020-01-02 | Senvion Gmbh | Method and control for operating a wind turbine |
| CN112739910A (en) | 2018-08-07 | 2021-04-30 | 维斯塔斯风力系统集团公司 | Operating a wind turbine during maintenance |
| US11635062B2 (en) | 2018-11-07 | 2023-04-25 | General Electric Renovables Espana, S.L. | Wind turbine and method to determine modal characteristics of the wind turbine in a continuous manner |
| EP3798445A1 (en) * | 2019-09-30 | 2021-03-31 | Siemens Gamesa Renewable Energy A/S | Control device and method of controlling a wind turbine |
| EP3859144A1 (en) * | 2020-01-29 | 2021-08-04 | Siemens Gamesa Renewable Energy A/S | Mitigating standstill vibrations of a wind turbine |
| EP3926161A1 (en) * | 2020-06-19 | 2021-12-22 | Siemens Gamesa Renewable Energy Innovation & Technology S.L. | Reducing vibrations of parked/standstill wind turbines |
| EP3964706A1 (en) * | 2020-09-02 | 2022-03-09 | General Electric Renovables España S.L. | A method for operating a wind turbine, a method for designing a wind turbine, and a wind turbine |
| CN112360684B (en) * | 2020-10-27 | 2022-07-12 | 中车株洲电力机车研究所有限公司 | Method for inhibiting vortex-induced vibration of fan |
| CN114294154A (en) * | 2020-12-28 | 2022-04-08 | 江苏金风科技有限公司 | Shutdown control method, shutdown control device and wind generating set |
| EP4163491A1 (en) * | 2021-10-07 | 2023-04-12 | Liftra IP ApS | Method of performing service work on a horizontal axis wind turbine |
| US11879425B2 (en) * | 2021-12-08 | 2024-01-23 | Ge Infrastructure Technology Llc | System and method for controlling blade pitch of wind turbine rotor blades in an idling state of the rotor hub |
| US12037984B2 (en) | 2021-12-08 | 2024-07-16 | Ge Infrastructure Technology Llc | System and method for controlling blade pitch of wind turbine rotor blades to reduce vibrations and limit loads in a locked condition of the rotor hub |
| US12012934B2 (en) * | 2021-12-08 | 2024-06-18 | General Electric Renovables Espana, S.L. | System and method for controlling blade pitch on wind turbine rotor blades to reduce vibrations and limit loads in a locked condition of the turbine rotor |
| CN117365843A (en) * | 2022-06-30 | 2024-01-09 | 金风科技股份有限公司 | Vortex-induced vibration resistance control method, device and system for fan |
| DE102022120945A1 (en) * | 2022-08-18 | 2024-02-29 | Wobben Properties Gmbh | Method for adjusting a wind turbine |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545728A (en) * | 1983-08-30 | 1985-10-08 | Cheney Jr Marvin C | Wind turbine generator with improved operating subassemblies |
| DE19626402C1 (en) * | 1996-07-01 | 1997-07-24 | Aerodyn Energiesysteme Gmbh | Method of adjusting rotor blade of wind generator |
| US6441507B1 (en) * | 2000-03-22 | 2002-08-27 | The Wind Turbine Company | Rotor pitch control method and apparatus for parking wind turbine |
| CN101469670A (en) * | 2007-12-28 | 2009-07-01 | 通用电气公司 | Wind turbine, wind turbine controller and method for controlling a wind turbine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10162942A1 (en) | 2001-12-20 | 2003-07-03 | Gen Electric | Method for operating a wind power plant and wind power plant |
| JP4468751B2 (en) * | 2004-06-30 | 2010-05-26 | 富士重工業株式会社 | Horizontal axis wind turbine and its standby method |
| ES2265771B1 (en) * | 2005-07-22 | 2008-01-16 | GAMESA INNOVATION & TECHNOLOGY, S.L. | METHOD FOR MAINTAINING THE COMPONENTS OF A WIND TURBINE AND A WIND TURBINE WITH COMPONENTS THAT ALLOW OPERATING MAINTENANCE. |
| KR20100049064A (en) * | 2007-07-12 | 2010-05-11 | 엠엘에스 일렉트로시스템 엘엘씨 | Method and apparatus for grid loss ride through for wind turbine pitch control system |
| WO2009068035A2 (en) * | 2007-11-30 | 2009-06-04 | Vestas Wind Systems A/S | A wind turbine, a method for controlling a wind turbine and use thereof |
| US7956482B2 (en) * | 2008-01-18 | 2011-06-07 | General Electric Company | Speed controlled pitch system |
| US7719128B2 (en) * | 2008-09-30 | 2010-05-18 | General Electric Company | System and method for controlling a wind turbine during loss of grid power and changing wind conditions |
| WO2010086688A1 (en) * | 2009-01-28 | 2010-08-05 | Clipper Windpower, Inc. | Load peak mitigation method and control system for a wind turbine |
-
2009
- 2009-09-30 US US12/570,396 patent/US8360723B2/en active Active
-
2010
- 2010-09-24 EP EP10179698.5A patent/EP2306005B1/en active Active
- 2010-09-24 DK DK10179698.5T patent/DK2306005T3/en active
- 2010-09-24 ES ES10179698.5T patent/ES2599353T3/en active Active
- 2010-09-30 CN CN201010506387.XA patent/CN102032110B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4545728A (en) * | 1983-08-30 | 1985-10-08 | Cheney Jr Marvin C | Wind turbine generator with improved operating subassemblies |
| DE19626402C1 (en) * | 1996-07-01 | 1997-07-24 | Aerodyn Energiesysteme Gmbh | Method of adjusting rotor blade of wind generator |
| US6441507B1 (en) * | 2000-03-22 | 2002-08-27 | The Wind Turbine Company | Rotor pitch control method and apparatus for parking wind turbine |
| CN101469670A (en) * | 2007-12-28 | 2009-07-01 | 通用电气公司 | Wind turbine, wind turbine controller and method for controlling a wind turbine |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2599353T3 (en) | 2017-02-01 |
| DK2306005T3 (en) | 2016-11-21 |
| US8360723B2 (en) | 2013-01-29 |
| US20110076142A1 (en) | 2011-03-31 |
| EP2306005B1 (en) | 2016-09-21 |
| EP2306005A2 (en) | 2011-04-06 |
| CN102032110A (en) | 2011-04-27 |
| EP2306005A3 (en) | 2014-02-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102032110B (en) | Method for reducing vibrations in wind turbines and wind turbine implementing said method | |
| CN1900513B (en) | Method of operating a wind turbine | |
| CN101589229B (en) | A method for damping edgewise oscillations in one or more blades of a wind turbine, an active stall controlled wind turbine and use hereof | |
| US10590912B2 (en) | Counteracting tower oscillations of an idling wind turbine | |
| CN101720387B (en) | Wind turbine with pitch control arranged to reduce life shortening loads on components thereof | |
| EP2232063B1 (en) | A wind turbine, a method for controlling a wind turbine and use thereof | |
| Larsen et al. | Active load reduction using individual pitch, based on local blade flow measurements | |
| EP2483555B1 (en) | Wind turbine stand still load reduction | |
| EP2489872B1 (en) | Blade load reduction for wind turbine | |
| KR101158193B1 (en) | Wind-driven generator and yaw rotation control method for wind-driven generator | |
| US9273668B2 (en) | Yaw system for a windmill | |
| CN102628423B (en) | A wind turbine and an associated control method | |
| CN104411967A (en) | A wind turbine with a load controller | |
| CN101994650A (en) | Wind power plant and control method thereof | |
| CN1997823A (en) | Method of controlling the pitch velocity of a wind turbine blade and control system therefor | |
| WO2018019345A1 (en) | Damping of edgewise wind turbine blade vibrations | |
| US20220213870A1 (en) | Method for controlling a wind turbine | |
| EP4048886A1 (en) | Mitigating standstill vibrations of a wind turbine | |
| Zhao et al. | Research on fault mechanism of icing of wind turbine blades | |
| KR102234121B1 (en) | Control method of wind power plant | |
| JP6696694B2 (en) | Wind power generation system and wind power generation method | |
| CN117881886A (en) | Reducing seismic loads acting on wind turbines | |
| EP2851559A1 (en) | Method and arrangement for controlling a rotor movement of a wind turbine rotor | |
| DK202270189A1 (en) | Operating a multi-rotor wind turbine with an energy generating unit positioned in a critical wake region |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231227 Address after: Barcelona, Spain Patentee after: Ge renewable energy Spain Ltd. Address before: New York, United States Patentee before: General Electric Co. |